Siemens SINAMICS G120C User Manual

Temperature switch
The converter interprets a resistance ≥100Ω as an opened bimetallic switch and responds
according to the setting for p0610.
PTC sensor
The converter interprets a resistance >1650Ω as being an overtemperature condition and
responds according to the setting of p0610.
The converter interprets a resistance <20Ω as being a short-circuit and responds with alarm
A07015. If the alarm is present for longer than 100milliseconds, the converter shuts down
with fault F07016.
Pt1000 sensor
Using a Pt1000 sensor, the converter monitors the motor temperature and the sensor itself
for wire breakage and/or short-circuit:
• Temperature monitoring:
Using a Pt1000 sensor, the converter evaluates the motor temperature in the range from
-48°C...+248°C.
Set the temperature for the alarm and fault thresholds with parameter p0604 or p0605.
– Overtemperature alarm (A07910):
-motor temperature>p0604 and p0610=0
– Overtemperature fault (F07011):
The converter responds with a fault in the following cases:
-motor temperature> p0605
-motor temperature>p0604 and p0610> 0
• Sensor monitoring (A07015 or F07016):
– Wire-break:
The converter interprets a resistance >2120Ω as a wire-break and outputs the alarm
A07015. After 100milliseconds, the converter changes to the fault state with F07016.
– Short-circuit:
The converter interprets a resistance <603Ω as a short-circuit and outputs the alarm
A07015. After 100milliseconds, the converter changes to the fault state with F07016.
Parameters
Number Name Factory setting
p0335[M] Type of motor cooling 0
p0601[M] Motor temperature sensor type 0
p0604[M] Mot_temp_mod 2/sensor alarm threshold 130°C
p0605[M] Mot_temp_mod 1/2/sensor threshold and temperature value 145°C
p0610[M] Motor overtemperature response 12
p0640[D] Current limit 0 Arms
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Advanced commissioning
8.24Motor protection with temperature sensor
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK 341

Siemens SINAMICS G120C Specifications

General

Communication Interfaces	PROFINET, PROFIBUS, USS, Modbus RTU
Protection Class	IP20
Ambient Temperature	-10°C to +50°C
Storage Temperature	-40°C to +70°C
Power Range	0.55 kW to 132 kW
Voltage Range	380 V to 480 V
Output Voltage	0 V to Supply Voltage
Frequency Range	0 Hz to rated output frequency
Control Modes	Vector control with encoder
Protection	Overload, overvoltage, undervoltage, short circuit, ground fault
Relative Humidity	5% to 95%, non-condensing
Altitude	Up to 2000 m without derating